UTC1237

UTC1237 LINEAR INTEGRATED CIRCUIT PROTECTOR IC FOR STEREO POWER AMPLIFIER DESCRIPTION UTC1237 is a monolithic integrated designed for protecting stero power amplifiers and loudsperkers. FEATURES * Work stably within a wide power suppy voltage range(vcc=25 to 60V). * Contain a relay driver(Max I 6=80mA) * Work as either latching function or automatic resetting function by using pin 3. (in both overload detection and output offset detection, either function can be selected.) * Need only single power supply * Both positive and negative output offset can be detected through the same pin.(output offset detection through pin 2) * AC voltage can be detected.(for AC-power OFF mute through pin 4) * The time delay from amplifier power ON to relay ON can be freely set by selecting external components.(For AC-power-ON mute through pin 7) * The moment that amplifier-power is turned off, it can make relay broken OFF and then loudsperker disconnected from amplifier to prevent a shock off noise. SIP-8 YOUWANG ELECTRONICS CO.LTD 1 2009.03.23 V1.0 UTC1237 BLOCK DIAGRAM LINEAR INTEGRATED CIRCUIT YOUWANG ELECTRONICS CO.LTD 2 2009.03.23 V1.0 UTC1237 Characteristic Power Supply Voltage Allowable Power Dissipation Operational Temperature Strong Temperature Pin 6 Maximum Current Pin 4 Maximum Voltage Pin 8 Maximum Voltage Pin 1 Maximum Current Pin 2 Maximum Current Pin 7 Maximum Voltage LINEAR INTEGRATED CIRCUIT Symbol Vcc PD Topt Tstg I6max V4max V8max I1ax I2max V7max ABSOLUTE MAXIMUM...